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题名: Role of interactions in electronic structure of a two-electron quantum dot molecule
作者: Dong, QR;  Xu, YQ;  Zhang, SY;  Niu, ZC
发表日期: 2004
摘要: We have studied a two-electron quantum dot molecule in a magnetic field. The electron interaction is treated accurately by the direct diagonalization of the Hamiltonian matrix. We calculate two lowest energy levels of the two-electron quantum dot molecule in a magnetic field. Our results show that the electron interactions are significant, as they can change the total spin of the two-electron ground state of the system by adjusting the magnetic field between S = 0 and S = 1. The energy difference DeltaE between the lowest S = 0 and S = 1 states is shown as a function of the axial magnetic field. We found that the energy difference between the lowest S = 0 and S = 1 states in the strong-B S = 0 state varies linearly. Our results provide a possible realization for a qubit to be fabricated by current growth techniques.
KOS主题词: SYSTEMS
刊名: CHINESE PHYSICS LETTERS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Dong, QR; Xu, YQ; Zhang, SY; Niu, ZC .Role of interactions in electronic structure of a two-electron quantum dot molecule ,CHINESE PHYSICS LETTERS,DEC 2004 ,21 (12):2496-2499
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